Add x86/i686 mirror and archlinux32 keyring

For aur target, fix typo and do proper cleanup

Merge compatible changes from crouton as of commit 99877eaf

Abstract arch pacaur install to release-specific install_pkg_dist

Add chrome targets to arch (aur)

Update README with info regarding this fork

Add touch target to arch release

Add aur target for arch

Fix KDE/Plasma support for arch

Dereference xf86-video-fbdev as no longer installed

Replace defunct xorg-utils with xorg-apps

Fix package list parse bug in arch bootstrap

Replace archival mirror with live and remove pacman-key refresh as unneeded

Full path to croutonfindnacl for discovery

Improve audio test and fix dd cmd